Boogie and Barnes facing lawsuit for involvement in NYC club fight.

Initially, Barnes was accused of choking out a woman inside the club, although he later gave his side of the story in which he says he was slapped by a woman in the VIP section and then jumped by her friends, while Boogie Cousins intervened to help him out.

Today, the alleged victims, Jasmine Besiso and Myrone Powell, filed a lawsuit against both Barnes and Cousins.

"Besiso and Myrone Powell claim they were innocently hanging out when Barnes approached Jasmine and began to choke her."

"In the suit, Powell says he saw the attack and tried to intervene but that's when Cousins stepped in and punched him in the face."

"At that point, Barnes allegedly released Jasmine's neck and elbowed her in the face -- knocking her unconscious. Myrone claims he was taken to the ground and Barnes and Cousins proceeded to kick and punch him in the head and body."

The rep for the victims also says that Besiso and Powell were treated for "serious injuries" at a nearby hospital after the incident.

Check out the footage immediately following whatever it is that actually happened inside Avenue Nightclub, as obtained by TMZ.